基于LT3575设计的隔离反激型电源转换技术

2011-03-21 17:43:39来源: 互联网

介绍了LT3575主要特性,方框图以及多种单输出,双输出和四输出隔离转换电路图。Linear 公司的LT3575是用于隔离反激拓扑开关电源稳压器,不需要第三个绕组或光隔离器。输入电压3-40V,集成了2.5A/60V NPN功率开关,输出功率可高达14W,主要应用在工业,汽车和医疗设备的隔离电源

Isolated Flyback Converter without an Opto-Coupler

The LTR3575 is a monolithic switching regulator specifically designed for the isolated flyback topology. No third winding or optoisolator is required for regulation. The part senses the isolated output voltage directly from the primary side flyback waveform. A 2.5A, 60V NPN power switch is integrated along with all control logic into a 16-lead TSSOP package.

The LT3575 operates with input supply voltages from 3V to 40V, and can deliver output power up to 14W with no external power switch. The LT3575 utilizes boundary mode operation to provide a small magnetic solution with improved load regulation.

The output voltage is easily set with two external resistors and the transformer turns ratio. Off the shelf transformers are available for many applications.

LT3575主要特性:

3V to 40V Input Voltage Range

2.5A, 60V Integrated NPN Power Switch

Boundary Mode Operation

No Transformer Third Winding or Optoisolator Required for Regulation

Improved Primary-Side Winding Feedback Load Regulation

VOUT Set with Two External Resistors

BIAS Pin for Internal Bias Supply and Power NPN Driver

Programmable Soft-Start

Programmable Power Switch Current Limit

Thermally Enhanced 16-Lead TSSOP

LT3575应用:

Industrial, Automotive and Medical Isolated Power Supplies

关键字:设计  隔离  电源  转换

编辑:神话 引用地址:http://www.eeworld.com.cn/mndz/2011/0321/article_5884.html
本网站转载的所有的文章、图片、音频视频文件等资料的版权归版权所有人所有,本站采用的非本站原创文章及图片等内容无法一一联系确认版权者。如果本网所选内容的文章作者及编辑认为其作品不宜公开自由传播,或不应无偿使用,请及时通过电子邮件或电话通知我们,以迅速采取适当措施,避免给双方造成不必要的经济损失。
论坛活动 E手掌握
微信扫一扫加关注
论坛活动 E手掌握
芯片资讯 锐利解读
微信扫一扫加关注
芯片资讯 锐利解读
推荐阅读
全部
设计
隔离
电源
转换

小广播

独家专题更多

富士通铁电随机存储器FRAM主题展馆
富士通铁电随机存储器FRAM主题展馆
馆内包含了 纵览FRAM、独立FRAM存储器专区、FRAM内置LSI专区三大部分内容。 
走,跟Molex一起去看《中国电子消费品趋势》!
走,跟Molex一起去看《中国电子消费品趋势》!
 
带你走进LED王国——Microchip LED应用专题
带你走进LED王国——Microchip LED应用专题
 
电子工程世界版权所有 京ICP证060456号 京ICP备10001474号 电信业务审批[2006]字第258号函 京公海网安备110108001534 Copyright © 2005-2016 EEWORLD.com.cn, Inc. All rights reserved